Question

Which equation has the same solution as x^2 -6x -12 = 0?

(1) (x + 3)^2 = 21

(2) (x - 3)^2 = 21

(3) (x + 3)^2 = 3

(4) (x - 3)^2 = 3

Answer 1

The answer is B, or (x - 3)^2 = 21

In both of these equations x = -1.58 or 7.58